Tuesday 13 November 2012

WEB HOSTING

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Web Hosting



Web Hosts Provide Data Space on their server to host  or run our websites.
To make your website available for world we have to host our website on the server.
If you want other people to view your website code in the data space which is provided by host or server.

 Web Hosting Introduction : 

What is the World Wide Web?

  • The Web is a network of computers all over the world.
  • All the computers in the Web can communicate with each other.
  • All the computers use a communication protocol called HTTP.


How does the WWW work?

  • Web information is stored in documents called web pages
  • Web pages are files stored on computers called web servers.
  • Computers reading the web pages are called web clients.
  • Web clients view the pages with a program called a web browser.
  • Popular browsers are Internet Explorer and Firefox.


How does a Browser Fetch a Web Page?

  • A browser fetches a page from a web server by a request.
  • A request is a standard HTTP request containing a page address.
  • An address may look like this: http://www.example.com/default.htm.

How does a Browser Display a Web Page?

  • All web pages contain instructions for display.
  • The browser displays the page by reading these instructions.
  • The most common display instructions are called HTML tags.
  • HTML tags look like this <p>This is a paragraph.</p>.

What is a Web Server?

  • The collection of all your web pages is called your web site.
  • To let others view your web pages, you must publish your web site.
  • To publish your work, you must copy your site to a web server.
  • Your own PC can act as a web server if it is connected to a network.
  • Most common is to use an Internet Service Provider (ISP).

What is an Internet Service Provider?

  • ISP stands for Internet Service Provider.
  • An ISP provides Internet Services.
  • A common Internet service is web hosting.
  • Web hosting means storing your web site on a public server.
  • Web hosting normally includes email services.
  • Web hosting often includes domain name registration.

Summary

If you want other people to view your web site, you must copy your site to a public server.
Even if you can use your own PC as a web server, it is more common to let an Internet Service Provider (ISP) host your site.
Included in a Web hosting solution you can expect to find domain name registration and standard email services.
You can read more about domain name registration, email and other services in the next chapters of this tutorial.

Web Hosting Providers

Hosting your own Web site

Hosting your web site on your own server is always an option. Here are some points to consider:

Hardware Expenses

To run a "real" web site, you will have to buy some powerful server hardware. Don't expect that a low cost PC will do the job. You will also need a permanent (24 hours a day ) high-speed connection.

Software Expenses

Remember that server-licenses often are higher than client-licenses. Also note that server-licenses might have limits on number of users.

Labor Expenses

Don't expect low labor expenses. You have to install your own hardware and software. You also have to deal with bugs and viruses, and keep your server constantly running in an environment where "everything could happen".

Using an Internet Service Provider

Renting a server from an Internet Service Provider (ISP) is a common option.
Most small companies store their web site on a server provided by an ISP. Here are some advantages:

Connection Speed

Most ISPs have very fast connections to the Internet.

Powerful Hardware

ISPs often have powerful web servers that can be shared by several companies. You can also expect them to have an effective load balancing, and necessary backup servers.

Security and Stability

ISPs are specialists on web hosting. Expect their servers to have more than 99% up time, the latest software patches, and the best virus protection.

Things to Consider with an ISP

24-hour support

Make sure your ISP offers 24-hours support. Don't put yourself in a situation where you cannot fix critical problems without having to wait until the next working day. Toll-free phone could be vital if you don't want to pay for long distance calls.

Daily Backup

Make sure your ISP runs a daily backup routine, otherwise you may lose some valuable data.

Traffic Volume

Study the ISP's traffic volume restrictions. Make sure that you don't have to pay a fortune for unexpected high traffic if your web site becomes popular.

Bandwidth or Content Restrictions

Study the ISP's bandwidth and content restrictions. If you plan to publish pictures or broadcast video or sound, make sure that you can.

E-mail Capabilities

Make sure your ISP supports the e-mail capabilities you need.

Front Page Extensions

If you use FrontPage to develop your web site, make sure your ISP supports FrontPage server extensions.

Database Access

If you plan to use data from databases on your web site, make sure your ISP supports the database access you need.

Web Hosting Domain Names

A domain name is a unique name for your web site.

Choosing a hosting solution should include domain name registration.

Your domain name should be easy to remember and easy to type.

What is a Domain Name?

A domain name is a unique name for a web site, like w3schools.com.
Domain names must be registered. When domain names are registered, they are added to a large domain name register. In addition, information about the web site, including the IP address, is stored on a DNS server.
DNS stands for Domain Name System. A DNS server is responsible for informing all other computers on the Internet about the domain name and the web site address.


Web Hosting Types




 


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